Posted 9/8/2010 02:16 (#1350947 - in reply to #1350870) Subject: Re: Waterbed mattress
Mid Michigan
Oh yes, you sure need a heater in a waterbed. I've had one for years and have refilled it about three times with tap water and tried to sleep on it the same night without it being heated. Bad idea! You will wake up about 3 am with hypothermia. Never fails.
Waterbed mattress
